Idaho River Comparison Chart

Section Season Difficulty Gradient Trip
Length		 Portages Permit Required Featured River Multi-Day Trip One Day Trip Wilderness River Alpine River Desert River Hot Springs
Boise River Apr - Sep I - II 0 Checked Checked
South Fork Boise May - Sep III - IV 25 16.5 mi. 0 Checked
Bruneau River Mar - Jun III+ - IV- 28 40 mi. 1 Checked Checked Checked Checked
Owyhee River Mar - Jun IV- - IV+ 16 35 mi. 1 Checked Checked Checked Checked Checked
Jarbridge River Mar - Jun III+ - IV 53 29 mi. 1 Checked Checked Checked Checked
Lochsa Apr - Jul IV- - IV+ 32 30 mi. 0 Checked Checked Checked Checked Checked
Moyie River - Canada to Bonners Ferry Municipal Dam [MO1] Jan - Dec I - II 20.6 mi. 0 Checked
Main Payette Apr - Sep III- - III+ 15 9 mi. 0 Checked Checked Checked
North Fork Payette - Cabarton Run Apr - Oct III - III+ 20 10 mi. 0 Checked Checked
North Fork Payette - Upper Apr - Jun IV - IV+ 83 4 mi. 1 Checked Checked
South Fork Payette - Below Grandjean May - Jun III - IV- 36 33 mi 1 Checked Checked Checked Checked
South Fork Payette - Canyon run Apr - Sep IV- - IV+ 36 9 mi. 0 Checked Checked Checked
South Fork Payette - Staircase Apr - Sep III - IV 35 4.5 mi. 0 Checked Checked Checked Checked
North Fork Payette - Below Sheep Bridge Apr - Aug II - II 6 18 mi. 0 Checked
North Fork Payette - Below Smiths Ferry Apr - Sep V- - V+ 112 15 mi. 0 Checked Checked
North Fork Payette - Cascade to Cabarton Apr - Aug I - I 5 10 mi. 0 Checked
North Fork Payette - McCall Apr - Jun II - III 32 2.5 mi. 0 Checked
South Fork Payette - Below Alder Creek Jun - Aug II- - II+ 4 7 mi. 0 Checked
South Fork Payette - Old Swirley Canyon Run Mar - Oct II - III 35 5 mi. 0 Checked Checked Checked
Main Salmon Jan - Dec III - IV 11 85 mi. 0 Checked Checked Checked Checked Checked Checked
Middle Fork Salmon May - Sep III - IV 28 100 mi. 0 Checked Checked Checked Checked Checked Checked
Salmon River - Above Riggins Jan - Dec III- - IV 10 28 mi. 0 Checked Checked
Salmon River - Lower gorge May - Oct III- - IV 8 80 mi. 0 Checked Checked Checked Checked
Salmon River - Piece of Cake Run near Stanley May - Aug III - IV 25 11 mi. 0 Checked Checked Checked Checked
Salmon River - Shoup section Mar - Sep II+ - III+ 33 6 mi. 0 Checked Checked
Salmon River -Below Riggins Jan - Dec III- - IV- 10 30 mi. 0 Checked Checked
Little Salmon - Below Hazard Creek Apr - Jun III+ - IV+ 72 20 mi. 1 Checked
Little Salmon - New Meadows Apr - Jun I - I 2 12 mi. 0 Checked
Little Salmon -Upper plunge Apr - Jun V - V+ 83 6 mi. 1 Checked
Salmon River - Hwy 93 Bridge Challis to Kilpatrick Access; Challis area [SA3] Jan - Dec I - II 0 Checked
Salmon River - Kilpatrick to North Fork; Salmon City area [SA4A] Jan - Dec I - II 0 Checked
Salmon River - Kilpatrick to North Fork; Salmon City area [SA4B] Jan - Dec I - II 0 Checked
Salmon River - Torrey's Bar to Hwy 93 Bridge above Challis; Challis area [SA2] Jan - Dec I - II 0 Checked
South Fork Salmon - Overnighter May - Jul IV- - V 48 31 mi. 1 Checked Checked Checked
South Fork Salmon - Upper run May - Jun IV - V 77 7 mi. 1 Checked Checked Checked
Selway River May - Sep IV- - IV+ 28 48 mi. 0 Checked Checked Checked Checked Checked
Selway River - Below Selway Falls Apr - Sep II - III 13 15 mi. 0 Checked Checked Checked
Snake River - C.J. Strike Dam to Walter's Ferry; Birds of Prey area [SN10] Jan - Dec I - II 3 18 mi. 0 Checked Checked Checked
Snake River - Hells Canyon Mar - Oct III - IV 8 81 mi. 0 Checked Checked Checked Checked
Snake River - Pittsburg Landing to Lewiston; Hells Canyon [SN14] Jan - Dec I - II 8 81 mi. 0 Checked Checked
Snake River - Star Falls to Twin Falls; Murtaugh stretch [SN6] Jan - Dec III+ - IV+ 29 13 mi. 0 Checked Checked Checked
Snake River - Twin Falls to Lower Salmon Falls Dam near Hagerman [SN7] Jan - Dec I - II 13 mi. 0 Checked Checked Checked
Henry's Fork - Lower Jun - Aug II - III 19 13 mi. 0 Checked
Henry's Fork - Upper Jan - Dec I - I 5 5.5 mi. 0 Checked
Snake River - Bliss Dam to headwaters of C.J. Strike Reservoir [SN9] Jan - Dec I - II 18 10 mi. 0 Checked Checked
Snake River - Lower Salmon Dam to Bliss Dam [SN8] Jan - Dec I - II 8 6.5 mi. 0 Checked Checked
Snake River - Massacre Rocks State Park to Milner Dam [SN4] Jan - Dec I - II 80 0 Checked
Snake River - Milner Dam to Star Falls [SN5] Jan - Dec I - II 1.3 mi. 0 Checked Checked
Snake River - Walter's Ferry to headwaters of Brownlee Reservoir [SN11] Jan - Dec I - II 0 Checked
Snake River, Henry’s Fork Confluence to Gem State Power Plant [SN1] Jan - Dec I - II 0 Checked
South Fork Snake - Palisades Dam Jun - Sep II - II+ 9 43 mi. 0 Checked Checked
St. Joe River - Heller Creek Run May - Jun III+ - IV 56 17 mi. 1 Checked Checked Checked
Middle Fork Clearwater Jan - Dec II- - II+ 10 23 mi. 0 Checked Checked
Clearwater River - Kooskia to Orofino [CL2] Jan - Dec I - II 0 Checked
Clearwater River - Orofino to Confluence Snake [CL3] Jan - Dec I - II 0 Checked
North Fork Clearwater Apr - Sep III - IV 18 30 mi. 1 Checked Checked
South Fork Clearwater - lower Apr - Sep IV - V 45 8 mi. 0 Checked
Coeur d' Alene River - Devils Elbow to South Fork confluence [CD1] Jan - Dec I - II 0 Checked
Kootenai River [KO1] Jan - Dec I - II 5 14 mi. 0 Checked
Pend Oreille River [PO1] Jan - Dec I - II 0 Checked
Priest River Apr - Jun III - III+ 7 38 mi. 0 Checked Checked
St. Maries River [SM1] Jan - Dec I - II 0 Checked
Teton River - Cache Bridge to Harrop Bridge [TE2] Jan - Dec I - II 0 Checked
Teton River - Harrop Bridge to confluence with Snake River [TE3] Jan - Dec I - II 0 Checked
Teton River - Upper put in to Cache Bridge [TE1] Jan - Dec I - II 0 Checked